BV Strap-On Bike Bag with Reflective Material - Saddle Bag with Seperate Divider for Small Items for All Your Essentials - Bike Pouch with Taillight Hanger for Maximum Safety

This is a wonderful little bag. It is thoughtfully designed, sturdy, and useful. I’ve only used it for short rides of about an hour each, but appreciate the comfort of knowing I am carrying everything I need to fix a flat in a package that is easy to install and remove, tucks securely under my seat, doesn’t wobble around or get in the way of my riding, has reflective tape, and a double zipper for easy access from both sides. Mine is size “large,” which I would call “large enough.” On my Polygon Extrada 7 MTB, it holds an inner tube for 29”x2.25” tire, multi tool that is 3”x1.75”x1”, 3 tire levers, small patch kit, CO2 inflator with cartridge, and 10”x12” microfiber towel. There is about 2 cubic inches to spare, like 2 energy bars. It’s good to know that there is also extra room in the drop down pouch should I need it. Yesterday I had a flat rear tire and I was back on the bike path in about 15 minutes. Was I glad to have everything I needed! I’m also glad I ordered a “large.”

This bag is the perfect size (large). If it is close in price to the medium, opt for the large. It will easily fit an iPhone 15 pro max along with wallet and keys. Looks sturdy, but will update if any quality issues arise. Pros: Inexpensive, good size, well made and designed, reflective material on the rear with a cutout for a reflector. Contoured opening helps fit slightly larger items than a flat one would. Velcro strap for seat post is adequate. Hard plastic insert protects items inside from the seat rails above. Cons: Cheap sewn on nylon zipper pull, single clip design. I wish it had one on each side for more secure mounting and adjustability. TLDR: I'm happy with the price I paid, size, and quality. I would buy this again.

Got the small size and it fits well under my Trek 7.3 hybrid bike, even with the seat in the forward most position, and maybe sticks out half an inch to an inch as in the photo. It is just large and long enough to hold a galaxy s4 smartphone with a case on it, and I could probably get a spare tube, small co2 inflator, and spare cartridge along with a multitool and car keys in there as well to cover basic necessities to help with a flat. The quality of the product seems very good and it seems thick and durable and not cheaply made at all. The slot to put a rear light on does point downward sharply, which is a bit annoying, but it still seems visible, or you can attach it directly underneath the bag on the seat tube as well. I do wish the plastic clip that you loop through the underside of the seat to secure it had the clip on either side of the seat instead of on the top of the bag, as it makes it very difficult to tighten fully and clip so that it sits snugly directly below the seat and not hanging down an inch or so. By the time you shorten the adjustable portion of the clip all the way, you have no room to work to connect it underneath the seat as the bag is in the way. Having the fixed portion of the clip on the side would make this way easier, but once you get adjusted properly its secure, and the velcro strap that goes around the seat tube seems secure as well. Great size for bare necessities that will also fit a modern smartphone and a few other essentials, without being bulky or overkill.

Awesome bag, I would recommend getting the Large as it can fit wallet, keys, and protein bar

I bought this because I like the style and functionality of it. I originally bought the medium sized one, but returned it because it was much smaller than expected. I bought the large unit and it’s better but still a little smaller than I would prefer. I’m going to keep it because, I like the design and the size is OK for the majority of things that I carry. This is replacing one that I had for 20 years which I was able to put my lock in. This one is too small to store my lock, but I can attach the bike lock , somewhere else on the bike. It seems to be well built. Zippers are good quality. I gave it three stars for water resistance only because I have no idea how well it resists water. The mounting system holds the bag in place securely; however, it took some time for me to figure out exactly how to attach it to the bike. The bag didn’t come with any instructions regarding how to attach it, but but because I’ve had a bike bag in the past, I had an idea of how to attach it. For someone who’s never attached back like this under their seat before, they may find it difficult. I’m sure there’s a video on YouTube that shows how to attach it. Overall, I’m happy with the product.

This relates to the SMALL size BV Bike Strap On Seat Bag. When it came to researching the best bike bag (for which I probably spent way too much time), the most important question I had to answer was how would I use this bag? Was I looking to store the basics of on-road repair, or was I looking to carry a myriad of personal items? In my case, I was looking for the basics, plus perhaps a little extra room if I wanted to hold keys, license or extra phone charger. I also wanted to make sure the bag did not extend beyond the profile of my seat and obviously did not want it to brush up against my legs. For me - the Small size BV bag was perfect. Regarding the "profile" note that your type of bike, seat and seat positioning make a difference. So reading about what works for others may not be a good reference, at least without photos, which I've included. My bag carries: 1-Replacement tube; 1-Crank Brothers 21 toolset; 2-tire levers; 1-Pro Bike CO2 Inflator w/Canister; 2 CO2 cartridges. To be fair, it is a tight fit and takes a little puzzling to get the best configuration. But as I thankfully, rarely need access to the items, it's fine. Though I'm not a weight weenie, I do like to keep things streamlined. I also slide my license and a key in without a problem. However, as many people ask, the small size would not also accommodate my phone, which I keep it on my handlebars anyway, so that is not an issue. I did visit a number of bike shops to see what they carried, more for size than anything. The Amazon pricing was considerably cheaper than in bike shops. I know the medium size has a collapsible expander, which would be great for the small as well, but honestly, it's not necessary. I would definitely buy a BV again as it straps on tightly (watch their installation video), is well constructed, has a net pouch inside and a strap to clip on a light. I may try the medium on my hybrid mountain bike just for comparison and will write about it if I do.

If I had known how small the medium is, I would have ordered the large. The medium seems small to me. I watched the YouTube that someone kindly gave a link to in the Q&A section and fastened the bag to my husband’s “new” vintage Schwinn LeTour III which has a rack on the back. I don’t think it will work with the expandable zipper section open because there is not enough space between the bottom of the seat and the rack. If you are tall or have no rack, you could easily unzip it and have more space. My opinion on what you want to have in there, and I am no expert, is: repair tool, patch kit, levers, maybe a spare tube (not sure that would fit in the medium, I think not, I think it would take up the whole thing), first aid, sunscreen. That seems like a minimum to me. We have bags on our other bikes and truthfully, they are all just bike bags. The capacity is what matters. If installed correctly, they all stay put. I do like that there is a loop on the back for a flashing light as the back of the rack does not accommodate. The price was right. It is fine. Our other bags are large enough for a few nice extra items, this one is not.

Does what it needs to do, holds storage. I keep a spare tube in there incase of flat.

Me parece una bolsa de excelente calidad, además tomando en cuenta que la adquirí en una oferta relámpago el precio fue bastante bueno. Compre la tamaño grande y la verdad si es bastante grande, perfecta para una bicicleta de montaña talla L como la mía, en una bicicleta de ruta ya se vería demasiada exagerada, además ni siquiera he tenido necesidad de expandirla ya que su tamaño es mas que suficiente para una camara R29, herramienta básica, parches, snacks y hasta mi teléfono caben a la perfección. El envío de Amazon sin ningún contratiempo y muy bien empacado. Completamente satisfecho con la compra, la recomiendo ampliamente!

I've now got three of these fitted to my various bikes, as they are well made, at a good price, and can easily take all sorts of stuff. As these bags go, they also look pretty good too, with their muted colours not drawing attention, but with reflective strips for a bit of added safety. This latest bag was purchased for my Fat Bike, and it holds two spare fat bike tubes, without needing to unzip the lower expanding part, so these bags can carry a lot of stuff should you need to. These bags seem to be waterproof too. I've pressure washed them to get the worst of the mud off and not found any water ingress so far. I do only use these bags for carrying spare tubes and tyre levers, so I'm not opening and closing them all the time, but they seem well made and the zips so far haven't caused me any bother.

Great piece of kit! (Small Size) Big enough to fit a co2 inflator, spare inner tube, puncture repair kit, tyre leavers, multi-tool and set of allen-keys and have room for your keys and phone. It fits securely, doesn't move about and stays completely out of the way. Nothing more you could ask for.

ＢＶの拡張式サドルバッグに次いで、2つ目の購入となります。 今回のものは、少しコンパクトになるので容量が限られますが、その代わり見た目はスマートで気に入っています。 タイヤレバー、チューブ１本、Ｈｅｘレンチ、財布、スマホ、携帯ポンプを入れていっぱいかな。十分です。

Buon prodotto, non ingombrante, sta bene sotto la sella, provato in varie uscite su sterrato e non si è allentato minimamente